•Chemical change – composition change•Physical change – no composition change, shape/form change•Intensive properties: Do not depend on the size of the sample

•Density is mass/volume.•color, melting point, boiling point, odor, refractive index, hardness, texture, solubility, electrical properties, and density

•Extensive properties: Do depend on the size of the sample

1 kg = 1000 grams 1 mm = 103 meter1 L = 1000 mL 1 cm = 102 meterOne pound is 454 g. One quart is 0.9464 L.One mile is 1.6093 km. One inch is 2.54 cm.

UNIT Conversions

UNIT CONVERSIONS and Sig FigsZERO AND NONZERO NUMBERS IN MEASUREMENTS

MATH OF SIGNIFICANT FIGURE MATH OF SIGNIFICANT FIGURE CALCULATIONSCALCULATIONS

DENSITY MEASUREMENTS